The particle system is based on a CCNode and works similar to the existing Cocos2D particle systems. The main difference is, that you can control the position and velocity of each particle. Please note that this system is not very optimized and lacks in flexibility since I just built it for FluidToy 2 and it was never meant to be more general. In other words: The code is a bit dirty! But feel free to play around with it, modify it and make use of it (and let me know what you’re making out of it).

There are two different systems: The SimpleParticleSystem, which draws points of any size or a point sprite using a texture. The second one is a LineParticleSystem, which will draw line particles. If you initialize the system with a size of 1000, you’ll have 500 lines, because a line consists out of 2 points (Wow, you never imagined that, did you? ;)). So if you loop through the particles, be sure to move only every second particle, the other one will follow with a small delay.

Download: Cocos2DSimpleParticleSystem

It works like every other CCNode:

particles = [SimpleParticleSystem node];
[particles initialize: 1000 width: size.width height: size.height];
[particles setTextureByString: @"particle_small.png"];
[self addChild: particles];
 
Loop through particles:
 
while(count < particles.particleCount)
{
   p = &particleAr[count];
   p->dir.x += CCRANDOM_MINUS1_1();
   p->dir.y += CCRANDOM_MINUS1_1();
   ++count;
   ...
}

Have fun!

(Note: The demo is broken with the latest Flashplayer 11 Release due to API changes)

I’d really like to push ND2D to github, but I’m struggling a bit with the current public PB3D release. There are some nasty bugs that make the renderings look ugly (Bilinear filtering is not working properly). I guess I have to wait for the next update :(

(Note: The demo is broken with the latest Flashplayer 11 Release due to API changes)

Btw.: Who’s attending to the FITC Amsterdam next week? See you there ;)

(Space = fullscreen, Download source, Flash Player 10 needed)

(Space = fullscreen, as usual)

(Press any key to toggle fullscreen)

more later ;)

My first try with the new AS3 sound classes (SoundMixer.computeSpectrum). This test measures the average sound energy, triggers an event if the energy changes and emits a particle. The particles are 2D particles generated with my 3d Engine: Launch!

After spending a lot time playing around with Plasma Pong I tried to do fluids by myself. I found a Fluid Solver and had just to convert it to C# and add a few Direct X effects. Download not yet available. Watch movie!

First steps with managed C# and DirectX. This is a direct conversion of my F9 Particles Experiment, but a lot faster and with a lot more particles at full screen resolution. Download not yet available. Watch movie!

Baggermatsch! Instructions: Press the button in the top left corner to change the drawing modes. Have fun playing in your sandpit. Launch!

AS3 particle system. 5000 particles with random motion based on a noisemap (Press any key to view the map) Click to change to another random map. Launch!

Launch!

… and my version of a mouse follower, nothing special, just nice colors: Launch!